<template>
  <div>
    <div class="search">
      <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音">
    </div>
    <div
      class="search-content"
      ref="search"
      v-show="keyword"
      >
      <ul>
        <li
          class="search-item border-bottom"
          v-for="item in list"
          :key="item.id"
          @click="handleCityClick(item.name)"
          >{{item.name}}</li>
        <li class="search-item border-bottom" v-show="hasNoData">没有找到匹配数据</li>
      </ul>
    </div>
  </div>
</template>
<script>
import Bscroll from 'better-scroll'
import { mapMutations } from 'vuex'
export default {
  name: 'CitySearch',
  props: {
    cities: Object
  },
  data () {
    return {
      keyword: '',
      list: [],
      timer: null
    }
  },
  methods: {
    // handleCityClick (city) {
    //   this.$store.commit('changeCity', city)
    //   this.$router.push('/')
    // }
    handleCityClick (city) {
      // this.$store.commit('changeCity', city)
      this.changeCity(city)
      this.$router.push('/')
    },
    ...mapMutations(['changeCity'])
  },
  computed: {
    hasNoData () {
      return !this.list.length
    }
  },
  watch: {
    keyword () {
      if (this.timer) {
        clearTimeout(this.timer)
      }
      if (!this.keyword) {
        this.list = []
        return
      }
      this.timer = setTimeout(() => {
        const result = []
        for (let i in this.cities) {
          this.cities[i].forEach((value) => {
            if (value.spell.indexOf(this.keyword) > -1 ||
                value.name.indexOf(this.keyword) > -1) {
              result.push(value)
            }
          })
        }
        this.list = result
      }, 100)
    }
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.search)
  }
}
</script>
<style scoped>
   .search{
     height: .72rem;
     background:#00bcd4;
     padding:0 .1rem;
   }
   .search-input{
     box-sizing: border-box;
     width:100%;
     height: .62rem;
     line-height: .62rem;
     color:#333;
     text-align: center;
     border-radius: .05rem;
     padding:0 .1rem;
   }
   .search-content{
     z-index: 1;
     overflow:hidden;
     position:absolute;
     top: 1.58rem;
     left:0;
     right:0;
     bottom:0;
     background:#eee;
   }
   .search-item{
     line-height: .62rem;
     padding-left: .2rem;
     background:#fff;
     color: #666;
   }
</style>
